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Nature. 2001 Jan 11;409(6817):211-5.

The protein-protein interaction map of Helicobacter pylori.

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  • 1Hybrigenics SA, Paris, France.

Erratum in

  • Nature 2001 Feb 1;409(6820):553.
  • Nature 2001 Feb 8;409(6821):743.

Abstract

With the availability of complete DNA sequences for many prokaryotic and eukaryotic genomes, and soon for the human genome itself, it is important to develop reliable proteome-wide approaches for a better understanding of protein function. As elementary constituents of cellular protein complexes and pathways, protein-protein interactions are key determinants of protein function. Here we have built a large-scale protein-protein interaction map of the human gastric pathogen Helicobacter pylori. We have used a high-throughput strategy of the yeast two-hybrid assay to screen 261 H. pylori proteins against a highly complex library of genome-encoded polypeptides. Over 1,200 interactions were identified between H. pylori proteins, connecting 46.6% of the proteome. The determination of a reliability score for every single protein-protein interaction and the identification of the actual interacting domains permitted the assignment of unannotated proteins to biological pathways.

PMID:
11196647
[PubMed - indexed for MEDLINE]
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